California State Population 2024 Census. This page features files containing state population totals and components of change for years 2020 to 2023. This page features files containing state population estimates by demographic characteristics for years 2020 to 2023. California, the most populous state, is sending the most (120). The most populated cities in california are los angeles with 3,820,914, san diego at 1,388,320, san jose with 969,655, san francisco at 808,988, and fresno with 545,716.
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